chore(cli): add default_client_version to rethCli (#11773)

Co-authored-by: Matthias Seitz <matthias.seitz@outlook.de>

crates/cli/cli/Cargo.toml

@@ -14,7 +14,7 @@ workspace = true
 [dependencies]
 # reth
 reth-cli-runner.workspace = true
-
+reth-db.workspace = true
 alloy-genesis.workspace = true
 
 # misc

crates/cli/cli/src/lib.rs

@@ -10,6 +10,7 @@
 
 use clap::{Error, Parser};
 use reth_cli_runner::CliRunner;
+use reth_db::ClientVersion;
 use std::{borrow::Cow, ffi::OsString};
 
 /// The chainspec module defines the different chainspecs that can be used by the node.
@@ -66,4 +67,7 @@ pub trait RethCli: Sized {
 
         Ok(cli.with_runner(f))
     }
+
+    /// The client version of the node.
+    fn client_version() -> ClientVersion;
 }